CN1190893C - 具有最佳反射的表面波换能器 - Google Patents

具有最佳反射的表面波换能器 Download PDF

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Publication number
CN1190893C
CN1190893C CNB018058949A CN01805894A CN1190893C CN 1190893 C CN1190893 C CN 1190893C CN B018058949 A CNB018058949 A CN B018058949A CN 01805894 A CN01805894 A CN 01805894A CN 1190893 C CN1190893 C CN 1190893C
Authority
CN
China
Prior art keywords
transducer
elementary cell
reflection
refers
electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNB018058949A
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English (en)
Chinese (zh)
Other versions
CN1406412A (zh
Inventor
A·贝尔格曼
J·弗兰茨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RF360 Technology Wuxi Co Ltd
Original Assignee
Epcos AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Epcos AG filed Critical Epcos AG
Publication of CN1406412A publication Critical patent/CN1406412A/zh
Application granted granted Critical
Publication of CN1190893C publication Critical patent/CN1190893C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14502—Surface acoustic wave [SAW] transducers for a particular purpose
    • H03H9/14505—Unidirectional SAW transducers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14517—Means for weighting
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14517—Means for weighting
    • H03H9/14523—Capacitive tap weighted transducers
CNB018058949A 2000-03-02 2001-02-19 具有最佳反射的表面波换能器 Expired - Lifetime CN1190893C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10010089.9 2000-03-02
DE10010089A DE10010089A1 (de) 2000-03-02 2000-03-02 Oberflächenwellenwandler mit optimierter Reflexion

Publications (2)

Publication Number Publication Date
CN1406412A CN1406412A (zh) 2003-03-26
CN1190893C true CN1190893C (zh) 2005-02-23

Family

ID=7633184

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB018058949A Expired - Lifetime CN1190893C (zh) 2000-03-02 2001-02-19 具有最佳反射的表面波换能器

Country Status (8)

Country Link
US (1) US6777855B2 (de)
EP (1) EP1264397A1 (de)
JP (1) JP2003526240A (de)
KR (1) KR100752828B1 (de)
CN (1) CN1190893C (de)
CA (1) CA2400719A1 (de)
DE (1) DE10010089A1 (de)
WO (1) WO2001065688A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3414373B2 (ja) * 2000-07-26 2003-06-09 株式会社村田製作所 弾性表面波装置
JP3674564B2 (ja) * 2001-09-25 2005-07-20 セイコーエプソン株式会社 半導体装置およびその製造方法
JP3844725B2 (ja) * 2002-09-30 2006-11-15 富士通メディアデバイス株式会社 弾性表面波フィルタ、それを有する弾性表面波分波器
JP4302394B2 (ja) * 2002-12-02 2009-07-22 ポリプラスチックス株式会社 ポリオキシメチレン樹脂製延伸体の製造方法
US7096736B2 (en) * 2003-08-04 2006-08-29 The Goodyear Tire & Rubber Company Passive tire pressure sensor and method
DE10345239B4 (de) * 2003-09-29 2013-09-05 Epcos Ag Mit Oberflächenwellen arbeitender Wandler
DE102005009359B4 (de) * 2005-03-01 2014-12-11 Epcos Ag Bandpassfilter
DE102005045638B4 (de) * 2005-09-23 2017-02-02 Epcos Ag Mit Oberflächenwellen arbeitender Wandler
US8340768B2 (en) * 2007-12-12 2012-12-25 Cardiac Pacemakers, Inc. Sensing threshold control to limit amplitude tracking
US8436509B1 (en) 2008-07-08 2013-05-07 Saudia Corporation High-frequency shear-horizontal surface acoustic wave sensor
US8294331B2 (en) 2009-09-22 2012-10-23 Triquint Semiconductor, Inc. Acoustic wave guide device and method for minimizing trimming effects and piston mode instabilities
US7939989B2 (en) * 2009-09-22 2011-05-10 Triquint Semiconductor, Inc. Piston mode acoustic wave device and method providing a high coupling factor
DE102012107049B4 (de) 2012-08-01 2017-10-05 Snaptrack, Inc. Elektroakustischer Wandler
US10261078B2 (en) 2015-08-17 2019-04-16 National Technology & Engineering Solutions Of Sandia, Llc Shear horizontal surface acoustic wave (SH-SAW) resonators and arrays thereof
US10009002B1 (en) 2015-09-04 2018-06-26 National Technology & Engineering Solutions Of Sandia, Llc Methods for suppressing spurious modes in microresonators
US11405014B1 (en) 2019-06-27 2022-08-02 National Technology & Engineering Solutions Of Sandia, Llc Solid-state tuning behavior in acoustic resonators

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387355A (en) * 1980-06-13 1983-06-07 Nippon Telegraph & Telephone Public Corporation Surface acoustic wave resonator
US4473888A (en) * 1981-10-28 1984-09-25 The United States Of America As Represented By The Secretary Of The Army Saw monolithic convolver using dispersive transducers
JPS58213519A (ja) * 1982-06-07 1983-12-12 Clarion Co Ltd 弾性表面波装置
US4910839A (en) * 1984-12-03 1990-03-27 R.F. Monolithics, Inc. Method of making a single phase unidirectional surface acoustic wave transducer
DE3529916A1 (de) * 1985-08-21 1987-02-26 Siemens Ag Dispersiver interdigital-wandler fuer mit akustischen wellen arbeitenden anordnungen
EP0255263B1 (de) 1986-07-29 1995-01-04 R F Monolithics, Inc. Wandler
US4918349A (en) * 1987-11-13 1990-04-17 Hitachi, Ltd. Surface acoustic wave device having apodized transducer provided with irregular pitch electrode group
JP2847438B2 (ja) * 1991-03-29 1999-01-20 三井金属鉱業株式会社 弾性表面波素子
US5793146A (en) * 1993-11-12 1998-08-11 Rf Monolithics, Inc. Surface acoustic wave transducer having selected reflectivity
US5818310A (en) * 1996-08-27 1998-10-06 Sawtek Inc. Series-block and line-width weighted saw filter device

Also Published As

Publication number Publication date
EP1264397A1 (de) 2002-12-11
US6777855B2 (en) 2004-08-17
US20030057805A1 (en) 2003-03-27
WO2001065688A1 (de) 2001-09-07
DE10010089A1 (de) 2001-09-06
CN1406412A (zh) 2003-03-26
KR100752828B1 (ko) 2007-08-29
KR20020079927A (ko) 2002-10-19
CA2400719A1 (en) 2001-09-07
JP2003526240A (ja) 2003-09-02

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: EPCOS SCIENCE AND TECHNOLOGY( WUXI ) CO., LTD.

Free format text: FORMER OWNER: EPCOS AG

Effective date: 20090709

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20090709

Address after: 2, Xindu Road, Singapore Industrial Park, Wuxi, Wuxi: 214028

Patentee after: Epcos Technology (Wuxi) Co., Ltd.

Address before: Munich, Germany

Patentee before: Epcos Co., Ltd.

CP03 Change of name, title or address

Address after: 214028 Jiangsu Wuxi Wu Quxi Shi Road No. 17

Patentee after: Full spectrum radio frequency technology (Wuxi) Co., Ltd.

Address before: No. 2, Xindu Road, Singapore Industrial Park, Wuxi, Wuxi

Patentee before: EPCOS Technology (Wuxi) Co., Ltd.

CP03 Change of name, title or address
CX01 Expiry of patent term

Granted publication date: 20050223

CX01 Expiry of patent term